Derrick truck



May 19, 1925;

, 1,538,434 H. c. HOLLOWAY ET AL DERRICK TRUCK Filed Feb 17, 1920 2 Sheets-Sheet 1 Immn 5* Harry G. Holoumy Dawn/cg,

Way U May 19, 1925. 1,538,434

- H. C. HOLLOWAY ET AL DERRICK TRUCK wanw'rfi: Harry Q/ OZZOwGy muff/05a- 7P0; zifiawrwy,

agw m pzl w UNITED s brackets 3, which are secured to a Patented ll/lay 19, 1925.

HARRY c. HOLLOWIAEOFGLENC0E,A1\1D= aAYv. DAWNEY, or oIIIcAGo, ILLINOIS.

; DERRICK ration.

Application filed Februaryfi, 1920. Serial No. 359,367.

To all whom it may concern.

Be it known that W6,HARRY G. HoLLowAY,

a citizen of the United States, residing at Glenooe, in the county of Cook and State of Illinois, and RAY.V. DAWNEY, a citizen of the United States, residing at Chicago,

men and provided with a derrick for lift ing, carrying and placing frogs, switches and similar equipment.

One object of the invention'is to provide a car or truck of this character in which the derrickis mounted so as to turn about a vertical'axis, a turn-table being provided for this purpose. t

Another object is to provide a truck of this character of generally improved-construction.

In the accompanying drawings we have illustrated one embodiment of the invention.

Figure 1 is a front elevation of the truck.

Fig. 2 is a top plan view thereof with the derrick removed. p

Fig. 3'is a side elevation of the body of the truck. i d

Fig. 4 is a section on the line4-4 of Fig. 2, and

Fig. 5 is a section on the line 5-5 of Fig. 2.

The truck, which is preferably of standard gauge, is providedwith two pairs of wheels 1, each pair being mounted on opposite ends of an axle 2, which is preferably rotatable, the axle being secured in frame or ring 4 in any suitable manner. This ring is preferably made from an angle iron. It supports a rotatable member composed of flat steelbars- 5 carrying a plurality of rollers'6 between them, said. rollers being mounted on bolts 7 passing through thebars 5 and being arrangedto roll on" the ring 4 as a. track. The outside frame members are are arc-shaped, but do not form a complete circle, as shown in Figs. 2 and 3. There are preferably six of the rollers 6, four of said rollersbeing grouped near one side ofthe frame and two-near the other side.

The four rollers are arranged on the side which supports the greatest weight. The angle 1I'O11S 9 are bent upwardly, as shown 111 Fig. 1, and are then bent forwardly, ex-

tending out over the opposite side of the car to form the runway or track of the derrick. The angle irons 10 are also bent upwardly, the upper ends thereof being spread apart and carrying braces 12, which brace the overhanging endof the derrick. The horizontal lower ends are shorter than the adjacent members 9, as shown in Fig. 2. The angle irons 8 are also bent upwardly and forwardly and are secured to the inclined part of the angle irons 9 to brace the same laterally. Additional angle irons 13 are provided, as shown in Fig. 1, to aid in supporting the overhanging portion of the derrick.

The derrick is provided with a suitable car 14, which travels on the inclined portion of the angle irons 9, said car supporting a chain 15, having a grapple 16 supported thereby. A windlass 17 is also provided, being operated by suitable gears 18, 19 and a handle 20, whereby frogs, switches and other parts may be raised by the grapple and moved about the yards or along the right of way.

To look the turn-table against upward movement, a pair of rollers 21 is provided beneath two of the upper rollers 6, as shown in-Fig. 4. The opposite side of the car is locked in place by a bar 22 sliding in suitable guides 23 and provided with a handle moval is desired, however, it is necessary merely to operate the handle 24 thereby withdrawing the offset end 25, permitting the turn table to be moved toward the side of they car away from the lower rollers 21, thus withdrawing said rollers from beneath the ring 4 and permitting the turn table and the derrick supported thereon to be lifted from the car body.

The ring is guided in its movement by a pair of rollers 26 (Fig. 2) turning about a vertical axis and supported by the angle irons 8, thus maintaining the rollers 6 on the circular track. With the turn table arrangement provided, the derrick may be swungthrough any angle thereby providing great flexibility in the movement thereof and facilitating the operation of lifting lengths of rails or other equipment.

The truck need not be of standard gauge, but may be of narrow gauge or any special gauge. Various other changes may be made Within the scope of the invention as expressed in the appended claim.

What- We claim is In a derrick truck, a circular angle iron track having an inwardly extending horizontal flange, rollers resting on said flange, arc-shaped bars on opposite sides of said rollers and carried thereby, a plurality of angle irons arranged transversely on said bars, plates secured to said bars and to said angle irons, additional rollers carried by said bars beneath said flange, guides carried by said angle irons, a longitudinally movable locking rod supported by said guides, and a handle for operating said locking rod.

In testimony whereof, We have subscribed our names.

HARRY C. HOLLOWAY. RAY V. DAVVNEY. 

